Home / 2,800,619.20-4,190,431.20-1,855,835.20

Finding the Fourth Proportional to 2,800,619.20, 4,190,431.20 and 1,855,835.20

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Solution

The fourth proportional to 2,800,619.20, 4,190,431.20 and 1,855,835.20 is: 2,776,796.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,800,619.20 : 4,190,431.20 = 1,855,835.20 : x
  2. Step 2: Convert to fraction form
    2,800,619.20/4,190,431.20 = 1,855,835.20/x
  3. Step 3: Cross multiply
    2,800,619.20x = 4,190,431.20 × 1,855,835.20
  4. Step 4: Simplify right side
    2,800,619.20x = 7,776,749,724,138.24
  5. Step 5: Solve for x
    x = 7,776,749,724,138.24/2,800,619.20
  6. Step 6: Final answer
    x = 2,776,796.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.